[INFO] cloning repository https://github.com/CHC0815/RustStacky
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CHC0815/RustStacky" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCHC0815%2FRustStacky", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCHC0815%2FRustStacky'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1714cb74e526df69a587a6a22086c1bd15607627
[INFO] checking CHC0815/RustStacky against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCHC0815%2FRustStacky" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CHC0815/RustStacky
[INFO] finished tweaking git repo https://github.com/CHC0815/RustStacky
[INFO] tweaked toml for git repo https://github.com/CHC0815/RustStacky written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CHC0815/RustStacky on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CHC0815/RustStacky already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 411d2daba59646d510e3cc2c2ea611510b4c7abc751242430601a3cdeb7abba2
[INFO] running `Command { std: "docker" "start" "-a" "411d2daba59646d510e3cc2c2ea611510b4c7abc751242430601a3cdeb7abba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "411d2daba59646d510e3cc2c2ea611510b4c7abc751242430601a3cdeb7abba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "411d2daba59646d510e3cc2c2ea611510b4c7abc751242430601a3cdeb7abba2", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f695893417c3a0a9dd22db717ea3fa1fe513a9fe6b3a6b6ea52f3950f771a15
[INFO] running `Command { std: "docker" "start" "-a" "0f695893417c3a0a9dd22db717ea3fa1fe513a9fe6b3a6b6ea52f3950f771a15", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling io-lifetimes v1.0.4
[INFO] [stderr]    Compiling rustix v0.36.7
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling camino v1.1.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking smallvec v1.10.0
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[INFO] [stderr]     Checking bstr v0.2.17
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[INFO] [stderr]     Checking rustc-demangle v0.1.21
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[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]     Checking thiserror v1.0.38
[INFO] [stderr]     Checking serde v1.0.152
[INFO] [stderr]     Checking toml_datetime v0.5.1
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[INFO] [stderr]     Checking cargo-platform v0.1.2
[INFO] [stderr]     Checking toml_edit v0.18.0
[INFO] [stderr]     Checking cargo_metadata v0.15.2
[INFO] [stderr]     Checking toml v0.6.0
[INFO] [stderr]     Checking cargo-config2 v0.1.3
[INFO] [stderr]     Checking cargo-llvm-cov v0.5.9
[INFO] [stderr]     Checking rust_stacky v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `String`, `Pointer`, and `Function` are never constructed
[INFO] [stdout]   --> src/stack_machine.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub(crate) enum Entity {
[INFO] [stdout]    |                 ------ variants in this enum
[INFO] [stdout]  7 |     Number(i32),
[INFO] [stdout]  8 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]  9 |     Pointer(u32),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 10 |     Function(Ast),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Entity` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:224:25
[INFO] [stdout]     |
[INFO] [stdout] 224 |                         write!(output, "{}", a);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 224 |                         let _ = write!(output, "{}", a);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:227:25
[INFO] [stdout]     |
[INFO] [stdout] 227 |                         write!(output, "{}", a);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 227 |                         let _ = write!(output, "{}", a);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:230:25
[INFO] [stdout]     |
[INFO] [stdout] 230 |                         write!(output, "#{:X}", a);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 230 |                         let _ = write!(output, "#{:X}", a);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:234:29
[INFO] [stdout]     |
[INFO] [stdout] 234 | ...                   write!(output, "FUNC: {:?}", name);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 234 |                             let _ = write!(output, "FUNC: {:?}", name);
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:286:25
[INFO] [stdout]     |
[INFO] [stdout] 286 |                         write!(output, "{}", string.chars().rev().collect::<String>());
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 286 |                         let _ = write!(output, "{}", string.chars().rev().collect::<String>());
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `String`, `Pointer`, and `Function` are never constructed
[INFO] [stdout]   --> src/stack_machine.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub(crate) enum Entity {
[INFO] [stdout]    |                 ------ variants in this enum
[INFO] [stdout]  7 |     Number(i32),
[INFO] [stdout]  8 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]  9 |     Pointer(u32),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 10 |     Function(Ast),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Entity` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:224:25
[INFO] [stdout]     |
[INFO] [stdout] 224 |                         write!(output, "{}", a);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 224 |                         let _ = write!(output, "{}", a);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:227:25
[INFO] [stdout]     |
[INFO] [stdout] 227 |                         write!(output, "{}", a);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 227 |                         let _ = write!(output, "{}", a);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:230:25
[INFO] [stdout]     |
[INFO] [stdout] 230 |                         write!(output, "#{:X}", a);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 230 |                         let _ = write!(output, "#{:X}", a);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:234:29
[INFO] [stdout]     |
[INFO] [stdout] 234 | ...                   write!(output, "FUNC: {:?}", name);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 234 |                             let _ = write!(output, "FUNC: {:?}", name);
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/stack_machine.rs:286:25
[INFO] [stdout]     |
[INFO] [stdout] 286 |                         write!(output, "{}", string.chars().rev().collect::<String>());
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 286 |                         let _ = write!(output, "{}", string.chars().rev().collect::<String>());
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.43s
[INFO] running `Command { std: "docker" "inspect" "0f695893417c3a0a9dd22db717ea3fa1fe513a9fe6b3a6b6ea52f3950f771a15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f695893417c3a0a9dd22db717ea3fa1fe513a9fe6b3a6b6ea52f3950f771a15", kill_on_drop: false }`
[INFO] [stdout] 0f695893417c3a0a9dd22db717ea3fa1fe513a9fe6b3a6b6ea52f3950f771a15
